221103442 has 8 divisors (see below), whose sum is σ = 379034496. Its totient is φ = 94758612.

The previous prime is 221103427. The next prime is 221103457. The reversal of 221103442 is 244301122.

221103442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221103427) and next prime (221103457).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7896538 + ... + 7896565.

It is an arithmetic number, because the mean of its divisors is an integer number (47379312).

Almost surely, 2^221103442 is an apocalyptic number.

221103442 is a deficient number, since it is larger than the sum of its proper divisors (157931054).

221103442 is a wasteful number, since it uses less digits than its factorization.

221103442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15793112.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 221103442 is about 14869.5474712582. The cubic root of 221103442 is about 604.6886743745.

Adding to 221103442 its reverse (244301122), we get a palindrome (465404564).

It can be divided in two parts, 22110 and 3442, that added together give a palindrome (25552).

The spelling of 221103442 in words is "two hundred twenty-one million, one hundred three thousand, four hundred forty-two".